Guard plate for mowers



I Aug. 8, 194-4.

H. FLOHR, JR

' GUARD PLATE FOR MOWERS Filed Aug. 24, 1942 HenryFlafiJf v. By gag andPatented Aug. 8, 1944 UNITED STATES PATENT OFFICE GUARD PLATE FOR.MOWERS Henry Flohr, Jr., Encampment, Wyo.

Application August 24, 1942, Serial No. 455,929

1 Claim.

The present invention relates to new and useful improvements in guardplates for the sickle bar of mowers and has for its primary object toprovide a self-sharpening guard plate of this character and includes theprovision of a wear plate for the rear edge of the reciprocating cutter.

A further object is to provide an attachment of this character of simpleand practical construction, which is efficient and reliable inperformance, relatively inexpensive .to manufacture and otherwise welladapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawing forming part hereof, wherein likenumerals refer to like parts throughout and in which:

Figure 1 is a side elevational view showing the guard plate in positionwith respect to the guard of the mower.

Figure 2 is a bottom plan view of the guard plate, and

Figure 3 is a sectional view taken on a line 33 of Figure 1.

Referring now to the drawing in detail wherein for the purpose ofillustration I have disclosed a preferred embodiment of the invention,the numeral 5 designates the guard plate generally which includes atongue 6 at its front end having its upper surface beveled as shown at Ifor conformably fitting in the guard of conventional construction andshown by the dotted lines at 8 in Figure 1 of the drawing.

The undersides of the guard plate adjacent eachlongitudinal edge thereofare serrated as shown at 9 with the serrations extending at an inclineddirection and opposite to each other at the respective opposite sideedges of the plate as shown to advantage in Figure 2 of the drawing. Theportion of the guard plate having the serrations 9 overlies thereciprocating cutter bar I0 so as to sharpen the edge of the teeth ofthe cutter bar during the reciprocation thereof.

The intermediate portion of the plate 5 is offset upwardly as shown at Hin order to clear the rivets l2 employed for securing the blades to thecutter bar.

The rear portion of the guard plate 5 is offset downwardly below theplane of the front portion thereof to form a shoulder l3 and the rearportion of the plate is bent upon itself to form a double thickness ofmaterial including an upper layer of material M and a lower layer ofmaterial 15, the lower layer l5 projecting forwardly of the shoulder [3to accommodate the rear edge of the blade ID,

The front edge of the lower layer of material I5 is bent downwardly asshown at IE to provide a wear plate for the rear edge of the cutter bar.

An opening I! is formed in the double layers of material l4 and Hi toaccommodate the attaching bolt I8 employed for securing the guard 8 tothe mower,

The guard plate is transversely curved as shown in Figure 3 to inclinethe serrated edges 9 downwardly at each side.

It is believed the details of construction, advantages and manner of useof the device will be readily understood from the foregoing withoutfurther detailed explanation.

Having described the claimed as new is:

A guard plate for mowers and comprising integrally formed front and rearsections, said front section being flat and adapted to overlieinvention, what is v the moving cutter of the mower and havingserrations on its underside arranged in strips adjacent each side edgeof the plate, a shallow longitudinally extending groove on the undersideof the front section between the strips of serrations to position thestrips on a plane below the remainder of said front section of the plateand means for attaching the rear section to the mower.

HENRY FLOI-IR, JR.

